Search a number
-
+
12220420300 = 22521111109473
BaseRepresentation
bin10110110000110010…
…01101000011001100
31011112122212200011021
423120121031003030
5200011411422200
65340342003524
7611555600344
oct133031150314
934478780137
1012220420300
115201121710
1224507165a4
1311c9a1b63a
1483cdd7d24
154b7cb041a
hex2d864d0cc

12220420300 has 36 divisors (see below), whose sum is σ = 28929070296. Its totient is φ = 4443788800.

The previous prime is 12220420297. The next prime is 12220420307. The reversal of 12220420300 is 302402221.

It is not an unprimeable number, because it can be changed into a prime (12220420307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5553637 + ... + 5555836.

It is an arithmetic number, because the mean of its divisors is an integer number (803585286).

Almost surely, 212220420300 is an apocalyptic number.

12220420300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220420300 is an abundant number, since it is smaller than the sum of its proper divisors (16708649996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12220420300 is a wasteful number, since it uses less digits than its factorization.

12220420300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11109498 (or 11109491 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 12220420300 its reverse (302402221), we get a palindrome (12522822521).

The spelling of 12220420300 in words is "twelve billion, two hundred twenty million, four hundred twenty thousand, three hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 11109473 22218946 44437892 55547365 111094730 122204203 222189460 244408406 277736825 488816812 555473650 611021015 1110947300 1222042030 2444084060 3055105075 6110210150 12220420300